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Grove Mountains 021525
Basic information Name: Grove Mountains 021525
     This is an OFFICIAL meteorite name.
Abbreviation: GRV 021525
Observed fall: No
Year found: 2003
Country: Antarctica [Collected by Chinese Antarctic Research Expedition (CARE)]
Mass:help 3.87 g
Classification
  history:
Meteoritical Bulletin:  MB 93  (2008)  Mesosiderite
Recommended:  Mesosiderite    [explanation]

This is 1 of 188 approved meteorites classified as Mesosiderite.   [show all]
Search for other: Mesosiderites, Metal-rich meteorites
Comments: Approved 5 Mar 2008
Revised 4 Aug 2008: final writeup
Writeuphelp
Writeup from MB 93:

Grove Mountains 021525                             72°57'39''N, 75°14'50''E

Grove Mountains, Antarctica

Find: 14 January 2003

Mesosiderite

History and Physical characteristics: The meteorite was found on blue ice west to the middle segment of the Gale Escarpment in Grove Mountains by J. Li. It is an irregular fragment partially covered by black fusion crust. The meteorite weighs 3.87 g.

Petrography: (G. Wang and D. Wang, GIGCAS; S. Hu and Y. Lin, IGGCAS). The meteorite contains 17 vol% metal. Most large fragments are orthopyroxene that usually have bright rims. Less abundant fragments are pigeonite and plagioclase with several grains of olivine. Pigeonite fragments show exsolution of augite, and olivine grains have coronal outlines decorated with small grains of chromite. The fine-grained matrix has an ophitic texture, consisting of pyroxenes and plagioclase with minor silica and chromite. Phosphates occur mainly close to metal.

Mineral compositions and Geochemistry: (L. Xu and W. Shen, IGGCAS; G. Wang, GIGCAS). Orthopyroxene fragments are very heterogeneous, Fs19.7-55.9Wo1-8, FeO/ MnO = 25; Lamellae of augite (Fs13-31Wo34-46), pigeonite (Fs33-56Wo1-4). Relative homogeneous composition of small pyroxenes in matrix, Fs32-36Wo2-3; plagioclase: An = 84-96 mol%; olivine has a range of Fa = 32-41 mol%, but homogeneous in individual grains; kamacite (Ni = 5.20-6.49 wt%, Co = 0.60-0.81 wt%); (Ni = 37.0- 46.7 wt%).

Classification: Mesosiderite; minimally weathered.

Type specimens: PRIC holds the main mass and a polished section.

Data from:
  MB93
  Table 6
  Line 185:
Date:14-Jan-2003
Latitude:72°57'39"S
Longitude:75°14'50"E
Mass (g):3.87
Pieces:1
Class:Mesosiderite
Classifier:GIGCAS
Main mass:PRIC
Institutions
   and collections
PRIC: Polar Research Institute of China, 451 Jinqiao Road, Shanghai 200129, China; Website (institutional address; updated 9 Apr 2013)
IGGCAS: Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China (institutional address; updated 16 Oct 2011)
GIGCAS: Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, China (institutional address)
Catalogs:
Search for this meteorite in the Chinese meteorite database (CHINARE):   
References: Published in Meteoritical Bulletin, no. 93, MAPS 43, 571-632 (2008)
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Geography:

Antarctica
Coordinates:
     Recommended::   (72° 57' 39"S, 75° 14' 50"E)

Statistics:
     This is 1 of 39173 approved meteorites from Antarctica (plus 5051 unapproved names)
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